I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
steadies stades steads studies stadias studdies steeds states satieties studios statues studious stets stats studs status stoats sedates statusy situates stots stotts stouts
toadies steadies cheddites studdies stades doodies stadias podites gadids dadoes didies diets dites dowdies lyddites tidies teddies toddies todies adits hodaddies iodides cadets daddies studies chedites
steady stead sated sited stade stadia staid steed stied